This is the heavy military hardware that the Middle East is buying up to fight ISIS

Graduating Saudi air force officers take an oath with the Koran in their hands during a graduation ceremony at King Faisal military college in Riyadh January 20, 2008. Reuters, Ali Jarekji The wealthy gulf states of the Middle East are driving an explosion in military spending, much of which is being funnelled into the fight against Islamic State (ISIS or ISIL).